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    CVE-2026-54806

    Unauthenticated PHP Object Injection in WP Activity Log <= 5.6.3.1 versions.

    Published:Jun 17, 2026
    Last Modified:Jun 17, 2026
    EPS:Jun 17, 2026
    EPSS Score:
    CVSS Score:9.8

    Affected Products

    Vendor
    Melapress
    Product
    Wp Activity Log
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    https://github.com/joshuavanderpoll/CVE-2026-54806

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

    CVE-2026-65512 (CVSS 5.4) — Cross-Site request forgery (CSRF) vulnerability in Melapress WP Activity Log and Melapress WP Activity Log Pre…
    CVE-2026-56005 (CVSS 7.1) — Subscriber Cross Site Scripting (XSS) in WP Activity Log <= 5.6.3.1 versions.…
    CVE-2026-45435 (CVSS 6.5) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapres…
    CVE-2026-25331 (CVSS 6.5) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapres…
    CVE-2025-0767 (CVSS 6.3) — WP Activity Log 5.3.2 was found to be vulnerable. Unvalidated user input is used directly in an unserialize fu…
    CVE-2025-0924 (CVSS 7.2) — The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘message’ parame…
    CVE-2024-10793 (CVSS 7.2) — The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the user_id paramete…
    CVE-2024-2018 (CVSS 8.8) — The WP Activity Log Premium plugin for WordPress is vulnerable to SQL Injection via the entry->roles parameter…
    CVE-2023-50905 (CVSS 7.1) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Melapres…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High